Abstract: A mesoporous cerium oxide nano-material and a preparation method and an application thereof are provided in the present disclosure, belonging to the technical field of porous materials. The preparation method includes the following steps: using porous organic frameworks material as a templating agent, impregnating and adsorbing cerium salt precursor under an action of alkali, and removing the templating agent by roasting pyrolysis to obtain the mesoporous cerium oxide nano-material. POFs is carbonized into mesoporous carbon materials by calcination in inert atmosphere, which supports the mesoporous channels of cerium oxide, and then the carbonized carbon materials of POFs are removed by calcination in air atmosphere, forming the mesoporous structure of cerium oxide. The mesoporous cerium oxide nano-material prepared by the present disclosure has a high specific surface area and mesoporous structure, and is used as a catalytic material or catalyst carrier.

Abstract: An antibody may be capable of specifically binding CD137 or an antigen binding fragment thereof, wherein the light chain variable region and the heavy chain variable region have one or more mutations. The antibody or antigen binding fragment thereof may be used in preparing a drug. The antibody or an antigen binding fragment thereof may specifically bind CD137, and may include a light chain variable region VL and a heavy chain variable region VH, wherein compared to a sequence as shown in SEQ ID NO: 103, the VL comprises one or more VL amino acid mutations, and the VL amino acid mutation occurs at one or more positions: V3, A10, K44, D71, and/or V77.

Abstract: The present disclosure provides a preparation method of a mesoporous CeO2-loaded Au catalyst, products and applications thereof, and belongs to the technical field of fine organic chemical industry. According to the present disclosure, firstly, COFs material COFs-41 is employed to prepare mesoporous CeO2 carrier material with high specific surface area; then, Au nanoparticles loaded on the surface of mesoporous CeO2 carrier pores are anchored by impregnation-reduction method to produce Au@CeO2 catalyst with high specific surface area; and then, mesoporous Au@CeO2 catalyst with high specific surface area, aromatic alcohols are added to a reactor, anhydrous methanol is used as a solvent, and heating is carried out to react in an atmosphere of atmospheric oxygen for a certain period of time at room temperature, and this catalyst catalyzes the oxidative transesterification of aromatic alcohols for synthesis of aromatic esters in a highly selective manner.

Abstract: An apparatus comprising a controller for a switching converter for receiving an input voltage and for providing an output voltage, the switching converter comprising a first switch and an energy storage element, the controller being configured to provide a first control signal to the first switch, the first control signal having a switching frequency, and control the switching frequency such that the switching frequency is substantially unaffected by variations in one or more of a load current, an equivalent series resistance of the energy storage element, and a turn on resistance of the first switch.

Abstract: The present disclosure discloses a light-transmittance device and a use method, and belongs to the technical field of manufacturing of rotary equipment. The light-transmittance device includes cylinder sections, a two-column vertical lathe, and a vertical lathe platform; T-shaped supporting fixtures are arranged inside the cylinder sections; light-transmittance tools are arranged at center positions of the cylinder sections; two ends of the cylinder sections are provided with rolling ring base plates which are paired and mounted with the cylinder sections; a roller frame is arranged on a lower side of each group of cylinder section; furthermore, the rolling frames are slidably connected with a rigid rail; a theodolite is arranged on one side close to the cylinder sections; and a triangular bracket and a light-transmittance platform are arranged on a lower side of a shell of the theodolite.

Abstract: An inspection system and method, the inspection system includes: a carrying device, at least one ray source and a detector assembly. The ray source and the detector assembly are lifted or lowered along a central axis of the carrying device relative to the carrying device. When viewed along the central axis, the ray source is translatable between scanning positions relative to the carrying device. When the ray source is at one of the scanning positions the ray source and the detector assembly are lifted or lowered relative to the carrying device along the central axis, and the ray source emits X-rays; and when the ray source and the detector assembly are lifted or lowered a predetermined distance the ray source translates to another scanning position. The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly.

Abstract: Provided are an adenosine triphosphatase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 2 (ATP2A2) gene-based molecular marker for identifying a chicken feed efficiency trait, and an identification method and use thereof. A nucleotide sequence of the molecular marker is shown in SEQ ID NO: 1, and a base at locus 926 in the nucleotide sequence is T or G. In the present application, by identifying a genotype of the molecular marker in a chicken genome and then selecting the chicken feed efficiency trait according to the genotype, a breeding method for early selection of the poultry feed efficiency trait is established. The method is simple, rapid, and low-cost, does not require special instruments, and is suitable for the needs of marker-assisted selection experiments.

Abstract: This disclosure relates generally to video coding/decoding and particularly for evaluating codec performance. One method includes obtaining a first plurality of anchor data points; obtaining a second plurality of test data points; analyzing monotonicity conditions of the first plurality of anchor data points and the second plurality of test data points; determining a fitting algorithm based on the analyzed monotonicity conditions; fitting the first plurality of anchor data points with the fitting algorithm to obtain an anchor curve; fitting the second plurality of test data points with the fitting algorithm to obtain a test curve; and evaluating the test codec performance based on the anchor curve and the test curve, to obtain an evaluation result.

Abstract: Methods, apparatus, and computer readable storage medium evaluating codec performance. One method includes obtaining m anchor data points each generated based on a respective anchor encoded video bitstream; obtaining n test data points each generated based on a respective encoded test video bitstream, n being an integer; fitting the m anchor data points with an anchor curve, the anchor curve being based on an anchor polynomial, wherein the anchor polynomial is monotonic in an x-axis range; fitting the n test data points with a test curve, the anchor curve being based on a test polynomial, wherein the test polynomial is monotonic in the x-axis range; and evaluating the test codec performance based on the anchor curve and the test curve, to obtain an evaluation result.

Abstract: A method for determining validity of a facial feature, and an electronic device are provided. The method includes: determining posture information and/or facial change information based on a facial feature of a first video image, where the posture information is used to represent deflection of a character's head indicated by the facial feature in the first video image, the facial change information is used to represent a position change status of the character's head in the first video image and a second video image, and the second video image is a frame of image preceding the first video image in a video stream to which the first video image belongs; and determining whether the facial feature is an invalid feature based on the posture information and/or the facial change information, and further determining whether to perform three-dimensional reconstruction processing on the character's face in the first video image.

Abstract: Techniques regarding a chemical composition that can be utilized within one or more combination therapies to treat a microbial infection are provided. For example, one or more embodiments described herein can comprise a chemical composition that includes a first triblock polymer comprising a quaternary ammonium functionalized polycarbonate block and exhibiting anticancer activity via a lytic mechanism. The chemical composition can also include a second triblock polymer comprising a guanidinium functionalized polycarbonate block and exhibiting anticancer activity via a translocation mechanism.

Abstract: The present disclosure discloses a light-transmittance device and a use method, and belongs to the technical field of manufacturing of rotary equipment. The light-transmittance device includes cylinder sections, a two-column vertical lathe, and a vertical lathe platform; T-shaped supporting fixtures are arranged inside the cylinder sections; light-transmittance tools are arranged at center positions of the cylinder sections; two ends of the cylinder sections are provided with rolling ring base plates which are paired and mounted with the cylinder sections; a roller frame is arranged on a lower side of each group of cylinder section; furthermore, the rolling frames are slidably connected with a rigid rail; a theodolite is arranged on one side close to the cylinder sections; and a triangular bracket and a light-transmittance platform are arranged on a lower side of a shell of the theodolite.

Abstract: Provided are a game system, a game method, a game program, and a game server capable of, in a game in which a plurality of players can participate, contributing to a team through behaviors other than interpersonal battles in the game and encouraging fight together with other players. A game system 1 comprising: a character state decision unit 50 that is configured to decide a state of a neutral character based on a result of a fight between the neutral character and a player character; and a point giving control unit 62 that is configured to control a giving of points of the neutral character to a player, wherein the point giving control unit 62 is further configured to automatically give the points to the player if a first condition is satisfied, and cause a point object to appear in a play field and make the point object available for acquisition by any player of an ally team and an enemy team if a second condition is satisfied.

Abstract: A molten silicon feeder for continuous czochralski single crystals includes an open crucible having a top opening located at the top and an injection port located in the lower part, the open crucible receiving and accommodating a solid silicon raw material; a heater for heating the open crucible, so that the solid silicon therein is melted, and injected below through the injection port at the bottom of the open crucible; a shell for enclosing and vacuum-sealing the overall structure of the molten silicon feeder.

Abstract: A wrinkle detection method includes: obtaining an original image, where the original image includes a face; adjusting a size of an ROI region on the original image to obtain at least two ROI images of different sizes, where the ROI region is a region in which a wrinkle on the face is located. A terminal device processes all the at least two ROI images of different sizes to obtain at least two binary images, where a white region in each binary image is a region in which a wrinkle is suspected to appear. The terminal device fuses the at least two binary images to obtain a final image, where a white region on the final image is recognized as a wrinkle.

Abstract: Provided are a game system, a game method, a game program, and a game server capable of, in a game in which a plurality of players can participate, contributing to a team through behaviors other than interpersonal battles in the game and encouraging fight together with other players. A game system 1 comprising: a character state decision unit 50 that is configured to decide a state of a neutral character based on a result of a fight between the neutral character and a player character; and a point giving control unit 62 that is configured to control a giving of points of the neutral character to a player, wherein the point giving control unit 62 is further configured to automatically give the points to the player if a first condition is satisfied, and cause a point object to appear in a play field and make the point object available for acquisition by any player of an ally team and an enemy team if a second condition is satisfied.

Abstract: A wrinkle detection method includes: rotating a region, in a face image, in which a wrinkle needs to be detected, to obtain a plurality of to-be-detected images; determining wrinkle points from all pixel points based on grayscale values of the pixel points in each of the to-be-detected images with different angles; determining at least one wrinkle line based on the wrinkle points; and then displaying, by the electronic device, the wrinkle line in the region in which the wrinkle needs to be detected, where each wrinkle line indicates one wrinkle in each of the to-be-detected images.

Abstract: An image acquisition method includes acquiring a first image based on a first photographing parameter, where the first image includes a first to-be-detected item, acquiring a second image based on a second photographing parameter, where the second image includes a second to-be-detected item, and determining, based on the first image and the second image, a detection result corresponding to the first to-be-detected item and a detection result corresponding to the second to-be-detected item.

Abstract: A skin detection method includes: dividing a region of interest in a face image into a highlighted region and a non-highlighted region; separately determining a first segmentation threshold of the highlighted region and a second segmentation threshold of the non-highlighted region; obtaining a binary image of the highlighted region based on the first segmentation threshold, and obtaining a binary image of the non-highlighted region based on the second segmentation threshold; fusing the binary image of the highlighted region and the binary image of the non-highlighted region; and identifying, based on a fused image, pores and/or blackheads included in the region of interest.